header {
  display: flex;
  flex: 1;
  justify-content: center;
  background-color: #ffffff;
}

header .nav {
  width: 1296px;
  height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header .nav .nav-left {
  display: flex;
  align-items: center;
}
header .nav .nav-left img {
  height: 60px;
  margin-right: 12px;
}
.boundary {
  width: 1px;
  height: 30px;
  margin: 0 20px;
  background-color: #e8e8e8;
}
header .nav .nav-left ul {
  display: flex;
}
header .nav .nav-left ul > li {
  height: 60px;
  display: flex;
  margin: 0 10px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
header .nav .nav-left ul > li a {
  display: flex;
  align-items: center;
  position: relative;
}
header .nav .nav-left ul > li ul {
  position: absolute;
  background-color: #ffffff;
  top: 60px;
  display: flex;
  flex-direction: column;
  border-radius: 5px;
  display: none;
  padding: 8px;
}
header .nav .nav-left ul > li ul li {
  height: 44px;
}
header .nav .nav-left ul > li:hover ul {
  display: block;
}
header .nav .nav-left ul li img {
  margin: 0;
  height: 16px;
}
header .nav .nav-right i {
  width: 22px;
  height: 32px;
  padding: 4px;
  margin-left: 8px;
}
header .nav .nav-right i img {
  height: 16.8px;
}
header .nav .nav-right button {
  width: 70px;
  height: 29px;
  background-color: #5ba8ff;
  border: 0.8px solid #5ba8ff;
  border-radius: 20px;
  color: #ffffff;
}
header .nav .nav-right button img {
  height: 16.8px;
}
